Organ stop-action.



' q/vi/tuaoow M. S. PITT.

ORGAN STOP ACTION. APPLICATION FILED 0:0.23. 1914.

1,151 ,38'7. Patented Aug. 24, 1915.

3 SHEETS-SHEET 1.

M. S. PITT.

ORGAN STOP ACTION.

APPLICATION FILED DEC. 23. I914- 1 151 387, Patented Aug. 24, 1915.

3 SHEETSSHEET 2.

ummto'a wi tnaomm M. S. PITT.

ORGAN STOP ACTION.

APPLICATION FILED DEC.23,1914.

1,151,387. I Patented Aug. 24, 1915.

3 SHEETS-SHEET 3.

MaJcoYm 6f Pin,

Wiiwzooeo MALCOLM S. PITT, 0F BRIDGETON, NEW JERSEY.

ORGAN STOP-ACTION.

Specification of Letters Patent.

Patented A11 24:, 1915.

Application filed December 23, 1914. Serial No. 878,814.

To all whom it may concern Beitknown that I, MALCOLM S. PITT, a citizenof the United States, residing at Bridgeton, in the county of Cumberlandand State of New Jersey, have invented certain new and usefulImprovements in Organ Stop-Actions, of which the following is aspecification.

My invention relates to improvements in organ stop actions, and 'moreparticularly to improved means for changing the registration of'pipeorgans, the object of the invention being to provide an arrangement ofauxiliary stops or other auxiliary devices equal in number to the numberof organ stops, and which can be operated while playing and provideimproved means for positioning the organ stops in conformity with theposition of'the auxiliary stops at a single operation. Y

In playing'many different pieces of music on the pipeorgan, it isnecessary to change the" registration from time to time. Frequently thismeans a-complete stop of the music for'an awkward length of time, andrequires the operator to-hastily pull out certain stops and push inother stops, more or less marring the effect of themusic.

It is the purpose'of my invention to provide an improved arrangement ofauxiliary stops which can be operated while playing, and whenthetimearrives for changing the registrationby the operation of a footleveror levers, or other device, the organ stops can be simultaneouslymoved to conform to the position of the auxiliary stops, therebyinstantly changing the register without any appreciable loss of time,and without any extra'exertion on the part of the operator.

With these and other objects in view, the invention consists in certainnovel features of construction and combinations and arrangements ofparts as will be more fully hereinafter described and pointed out in theclaims.

In the accompanying drawings: Figure 1 is a fragmentary view in frontelevation of an organ, illustrating my improvements. Fig. 2, is afragmentary view in vertlcal section taken on the line 2-2 of Fig. 3.Fig. 3 is a fragmentary view in horizontal section'on the line 3-3 ofFig. 1, and Fig. 4 is a fragmentary view in vertical section on the line4-4 of Fig. 3.

1 represents an organ or more particularly an organ console providedwith stops 2 controlling the ordinary mechanism of the organ. Myinvention is not limited to any particular number or arrangement ofthese stops. For convenience of illustration I have shown nine stops ateach side of the organ keyboards 3, and above the upper keyboard 3 Ilocate my improved auxiliary stops 4, but it is to be'understood thatthe number and location of these organ stops and auxiliary stops may bevariously arranged without departing from my invention.

In the illustration, the stops 2 at theright of the organ, are incombination with the upper keyboard 3, and the stops at the left of theorgan are in combination with the lower keyboard 3. The auxiliary stopst above the upper keyboard are divided into two series, the series atthe right controlling the stops 2 atthe right, and the series ofauxiliary stops 4 at the left controlling the stops 2 at the left. Asthe series of stops at the right and left of the organ are operated inprecisely the same manner by the auxiliary stops, it is only necessaryto illustrate and describe one set or series of such stops, and forconvenience of illustration,

5 with slots 6 therein, and blocks 7 fixed thereto. Bars 8 are supportedin the organ casing 1, and are located parallel to the stops 2. Thesebars 8 are mounted to slide longitudinally, and throughout a portion oftheir length are angular in cross section and correspond in size andshape to the angular portions 5 of the stops 2.

It is to be understood that each organ stop 2 is provided with a bar 8,and each bar 8 has a slot 9 therein and is provided on its upper facewith a cam block 10. Through the slots 9 of the "bars 8, levers 11 arepositioned and are pivotally supported between their ends in the slots 9by means of transverse pins 12 projected thr'ough'the bars and thelevers. These levers 11, at their free ends, are located in the slots 6of the stops 2, and it will be noted that these slots 6 are of a lengthto allow a considerable movement of the levers therein without movingthestops.

For moving the levers 11 of each vertical series of bars 8, I provide apair of vertical parallel swinging gates 13. The pairs of gates 13 arepivotally mounted on fixed horizontal bars 14, and the gates of eachpair are connected by links 15 to compel them to swing together. As thepairs of gates and their operation are precisely alike, the descriptionof one will apply alike to all.

The inner gate 13 is adapted to engage the levers 11 of the verticalseries of stops which they control, and the forward gate 13 is providedwith a pivoted arm 16. This pivoted arm 16 is adapted to engage theblock 7 of stop 2, unless prevented by the cam block 10 on bar 8, aswill be more fully hereinafter described.

To compel the pairs of gates 13 at one side of the organ to operatesimultaneously, I provide a longitudinal shaft 17 supported in suitablebearings 18, and provided with. upwardly projecting crank arms 19. Thearms 19 are connected by links 20 with the rear gates 13 of the series,so that when the shaft 17 is turned, it compels all of the gates at oneside of the organ to swing simultaneously.

21 is a foot lever held in normal position by a coiled spring 22, andconnected by a link 23 with a crank arm 24 on shaft 17. When this footlever 21 is operated, it will cause all of the gates to swing in arearward direction, and when pressure on the foot lever is released, thespring 22 will return the parts to normal position. I have shown two ofthese foot levers 21, but it is of course to be understood that theentire operation may be by a single foot lever if desired.

The bars 8 above referred to are caused to move longitudinally by meansof the auxiliary stops 4, and while I have illustrated these bars ashaving cylindrical forward ends 25, movable in cup shaped guides 26, itis to be understood that this particular form of mounting may be variedas desired. Each bar 8 is provided with a slot 27, and abell-crank-lever 28 is provided for operating each stop. Brackets 29support the bellcrank-levers 28, and rods 30 connect thebellcrank-levers 28 with crank arms 31 on vertical shafts 32. Theseshafts 32 are supported in brackets 33, and are connected by crank arms34 with the auxiliary stops 4.

By reference particularly to Fig. 2, it will be seen that the variousrods 30 are at different elevations, so that there is no conflict of theparts in their operation. It will also be noted in Fig. 2, that theangular portions 5 of stops 2, and the angular portions of the bars 8,are so arranged that the pivoted arms 16, although at an angle, restupon smooth surfaces of both the bars and the stops.

It is to be understood that it is my intention to provide felt pads 35throughout the construction wherever twoparts come together, and areliable to create noise, and I may variously arrange the cooperatingparts to conform to the particular instrument.

The operation is as follows: At the beginning of the performance,certain stops 2 are drawn out in the ordinary manner. As the performerplays the first part of the music, he can at opportune times, draw outthe auxiliary stops 4 in accordance with the first change in thearrangement of stops, and when the proper time of change occurs, he candepress the foot lever or foot levers 21, and compel stops 2 to takepositions corre sponding to the positions of their respective auxiliarystops. If the stop 2 is drawn outward, and the auxiliary stop for suchorgan stop is drawn outward, the bar 8 will be drawn forward or outwardso that its cam block 10 will elevate the pivoted arm 16, permitting itto move rearwardly as the gates 13 are swung without striking the block7. At the same time, the rear gate 13 will engage lever 11 and force thebar 8 to its inward position. This inward movement of the bar 8 returnsthe auxiliary stop 4 to its normal inward position.

If the organ stop 2 is in its inward position, and its controllingauxiliary stop 4 is drawn outward, the operation of the foot lever 21will compel the parts to move as follows: As the auxiliary stop 4 hasbeen drawn out, it will cause the bar 8 to move forwardly, thus bringingthe end of the lever in position to be engaged by the inner gate 13, sothat as the latter swings inwardly, it will compel the lever 11 to swingon its fulcrum, and move the organ stop to a forward position. If theorgan stop 2 is out, and its auxiliary stop is in, the operation of thefoot lever will cause the gates 13 to swing, and the pivoted arm 16 willengage the block 7 and force the organ stop inwardly, as the block 7will be in a forward position, and the operation of the arm will not beinterfered with by the cam block 10. If the organ stop 2 is in, and theauxiliary stop 4 is in, the operation of the gates 13 will not affectthe parts in the slightest, as they will be in the position shown inFig. 2. After the operation of the gates by the lever 21, such auxiliarystops 4 as are drawn outwardly, are manually forced inwardly, and a newcombination set up when desired.

Various slight changes might be made in the general form and arrangementof parts described without departing from my invention, and hence I donot limit myself to the precise details set forth, but consider myselfat liberty to make such changes and alterations as fairly fall withinthe spirit and scope of the appended claims.

Having thus described my invention, wh at I claim as new and desire tosecure by Letters Patent is:

1. The combination with a plurality of mums? 3 organ stops, of an equalnumber of auxiliary stops constructed'to be moved without moving theorgan stops, organ stop moving means moved into set position by theauxiliary stops, and mechanism compelling the operationof said'last-mentioned means, substantial'ly as described.

2. In an organ, the'combination with a plurality of organ stops, of anequal num ber of auxiliary stops, bars located parallel to the organstops, devices on the bars engagingthe organ stops, mechanism connectingthe bars and the auxiliary stops, and gates adapted to movethe saiddevices to move the organ stopsysubstantially as described.

3. In an organ, the combination with a plurality of organstops, of anequal number of auxiliary stops, bars located parallel tothe'organstops, devices on the bars en gaging the organ stops, mechanismconnecting the bars and the auxiliary stops, swinging gates, and pivoteddevices connected to the gates and adapted to engage the organ stops,said engagement determined by the position of the bars, substantially asdescribed.

l. The combination with a plurality of organ stops, and a plurality oflongitudinally movable bars parallel with the organ stops, of auxiliarystops equal in number to the organ stops, mechanism connecting theauxiliary stops and the bars compelling them to move simultaneously,swinging members, means for compelling the swing ing members to movesimultaneously, de vices on the bars operated by the swinging members toforce the organ stops in one di rection, and devices on the swingingmembers to force the organ stops in the opposite direction,substantially as described.

5. The combination with a plurality of organ stops, and a plurality oflongitudinally movable bars parallel with the organ stops, of auxiliarystops equal in number to the organ stops, mechanism connecting theauxiliary stops and the bars compelling them to move simultaneously,swinging members, means for compelling the swinging members to movesimultaneously, levers pivotally connected to the bars and operativelyengaging the organ stops, said levers adapted to be engaged by theswinging members to move the organ stops in one direction, and devicescarried by the swinging members to engage the stops and move them in theopposite direction, substantially as described.

6. The combination with a plurality of organ stops, and a plurality oflongitudinally movable bars parallel with the organ stops, of auxiliarystops equal in number to the organ stops, mechanism connecting theauxiliary stops and the bars compelling them to move simultaneously,swinging members,

means for compelling the swinging members to move simultaneously, leverspivotally con nected to the bars and operatively engaging the organstops, said levers adapted to be engaged by the swinging members to movethe organ stops in one direction, pivoted arms carried by the swingingmembers adapted to engage shoulders on the organ stops and move them ina direction opposite to the movement caused by the levers, and camblocks onthe bars to prevent the engagement of the arms with theshoulders when said'bars are in their forward positions, substantiallyas described.

7. Thecombination with a plurality of organ stops,.and a plurality oflongitudinally movable bars parallel with the organ stops, of auxiliarystops equal in number to the organ stops, mechanism connecting theauxiliary stops and the bars compelling them to move simultaneously,swinging members, means for compelling the swinging members to movesimultaneously, devices on the bars operated by the swinging members toforce the organ stops in one direction, and devices on the swingingmembers to force the organ stops in the opposite direction, saidswinging members comprising pivoted gates, and means compelling thesimultaneous swinging movement of all of the gates, substantially asdescribed.

8. The combination with a plurality of organ stops, and a plurality oflongitudinally movable bars parallel with the organ stops, of auxiliarystops equal in number to the organ stops, mechanism connecting theauxiliary stops and the bars compelling them to move simultaneously,swinging members, levers pivotally connected to the bars and operativelyengaging the organ stops, said levers adapted to be engaged by theswinging members to move the organ stops in one direction, devicescarried by the swinging members adapted to engage the stops and movethem in the opposite direction, said swinging members comprising pivotedgates, and means compelling the simultaneous swinging movement of all ofthe gates, substantially as described.

9. The combination with a plurality of organ stops, and a plurality oflongitudinally movable bars parallel with the organ stops, of auxiliarystops equal in number to the o1 gan stops, mechanism connecting theauxiliary stops and the bars compelling them to move simultaneously,swinging members, means for compelling the swinging members to movesimultaneously, levers pivotally connected to the bars and operativelyengaging the organ stops, said levers adapted to be engaged by theswinging member to move the organ stops in one direction, shoulders onthe organ stops, pivoted arms carried by the swinging members to engagethe shoulders on the organ stops and move them in a direction oppositeto the movement caused by the levers, cam blocks on the bars adapted toprevent the engagement of the arms with the shoulders when said bars arein their forward positions, said swinging members comprising pivotedgates, and means compelling the simultaneous swing ing movement of allof the gates, substantially as described.

10. The combination with a plurality of organ stops, and a plurality oflongitudinally movable bars parallel with the organ stops, of auxiliarystops equal in number to the organ stops, mechanism connecting theauxiliary stops and the bars compelling them to move simultaneously,swinging gates located beside the bars, means compelling thesimultaneous operation of all of the gates in one direction, a springconstructed their forward positions, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

MALCOLM S. PITT.

Witnesses:

SHERMAN G. Pm, WILLARD L. MORSE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner; 0t Iatentl, Washington, D. C.

